Oh believe me I do, but even that has four or five of his ideas floating round at any one time... that's why I asked. Think of this one thread as a simple way for him to give us updates on about six different threads.

Hehe, right now I have to admit that it's been weeks since I actually did anything on the workbench, aside from the usual distractions of work and the better half I've had the Monsoon to play with, an easy way to eat up your free time (as well as vast quantities of lead and compressed air )

As regards to combustions and anything involving reciprocating pistons, hammer valves or similar automatic mechanisms feeding from an air tank, not happening. I'm pretty much convinced that preloaded cartridges are the closest I'll come to achieving what I want in terms of individual projectile power and "cool" factor. I'm currently waiting for a custom threaded section to be made (hopefully I'll receive it tomorrow) so I can try out the burst disk cartridge, if not I'll go the piston route.

In the meantime, I've also been sketching designs for this idea, I've been wanting to make soemthing similar for a while, maybe make it even bigger to fit in a bike pump, Munich style.